30431023 has 8 divisors (see below), whose sum is σ = 34824992. Its totient is φ = 26048736.

The previous prime is 30431021. The next prime is 30431059. The reversal of 30431023 is 32013403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30431023 - 2¹ = 30431021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30430988 and 30431006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3661 + ... + 8617.

It is an arithmetic number, because the mean of its divisors is an integer number (4353124).

Almost surely, 2^30431023 is an apocalyptic number.

30431023 is a deficient number, since it is larger than the sum of its proper divisors (4393969).

30431023 is an equidigital number, since it uses as much as digits as its factorization.

30431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30431023 is about 5516.4320896754. The cubic root of 30431023 is about 312.2042787516.

Adding to 30431023 its reverse (32013403), we get a palindrome (62444426).

The spelling of 30431023 in words is "thirty million, four hundred thirty-one thousand, twenty-three".